class_docstr: HParams Plugin for TensorBoard.
  
  It supports both GETs and POSTs. See 'http_api.md' for more details.
docstr: Tries to get the scalars plugin.
  
  Returns:
  The scalars plugin or None if it is not yet registered.
docstr_tok: ["Tries","to","get","the","scalars","plugin",".","Returns",":","The","scalars","plugin","or","None","if","it","is","not","yet","registered","."]
code: def _get_scalars_plugin(self):
      """Tries to get the scalars plugin.
  
      Returns:
      The scalars plugin or None if it is not yet registered.
      """
      return self._context.tb_context.plugin_name_to_instance.get(
          scalars_metadata.PLUGIN_NAME
      )
  
imports: import json
  import werkzeug
  from werkzeug import wrappers
  from tensorboard import plugin_util
  from tensorboard.plugins.hparams import api_pb2
  from tensorboard.plugins.hparams import backend_context
  from tensorboard.plugins.hparams import download_data
  from tensorboard.plugins.hparams import error
  from tensorboard.plugins.hparams import get_experiment
  from tensorboard.plugins.hparams import list_metric_evals
  from tensorboard.plugins.hparams import list_session_groups
  from tensorboard.plugins.hparams import metadata
  from google.protobuf import json_format
  from tensorboard.backend import http_util
  from tensorboard.plugins import base_plugin
  from tensorboard.plugins.scalar import metadata
  from tensorboard.util import tb_logging
label_desc: Use image node_id 9 for calling the HParamsPlugin obj's underlying member method code with example usage: obj._get_scalars_plugin() and returns: self